If I pay the $400 usd DTV visa fee and get rejected, will I have to pay it again if I apply again? Will I be allowed to apply again or is that it and I'm rejected for good?
TLDR : Answer Summary
If your DTV visa application is rejected, you will not receive a refund for the $400 USD fee you paid, as all visa application fees are non-refundable regardless of the application outcome. You are allowed to apply again, but you will need to pay the application fee again.
DTV VISA RESOURCES / SERVICES